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On the performance of closed-loop transmit diversity with non-ideal feedback
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0002-7926-5081
UCSD.
2003 (English)In: 2003 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5 - NEW FRONTIERS IN TELECOMMUNICATIONS, NEW YORK: IEEE , 2003, 3190-3194 p.Conference paper, Published paper (Refereed)
Abstract [en]

A closed-loop transmit diversity system is evaluated, taking several major feedback non-idealities into account both separately and in combination, contrasting most previous work in the field. The focus of the study is on the trade-off between quantization errors and feedback periodicity (i.e., a trade-off between sparse high-resolution data and frequent low-resolution data). Different number of transmit antennas, transmission rates and receiver velocities are investigated. In addition, we also study the impact of feedback delay. Some main results are as follows: For each receiver velocity and feedback channel rate, there exists an optimal choice of quantization resolution, and hence an optimal choice of feedback period. Furthermore, there is an optimum choice of the number of transmit antennas to employ for a given degree of Doppler and a given feedback rate. Finally, the bit error rate performance for a fixed feedback rate and a given receiver velocity is practically independent of the transmission rate.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2003. 3190-3194 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-29031ISI: 000183802400615ISBN: 0-7803-7802-4 (print)OAI: oai:DiVA.org:kth-29031DiVA: diva2:394024
Conference
IEEE International Conference on Communications (ICC) ANCHORAGE, AK, MAY 11-15, 2003
Note
QC 20110201 NR 20140804Available from: 2011-02-01 Created: 2011-01-25 Last updated: 2011-12-15Bibliographically approved

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Skoglund, Mikael

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  • apa
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  • Other locale
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  • asciidoc
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